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Kyle S Beyer, David H Fukuda, Michael J Redd, Jeffrey R Stout, Jay R Hoffman
Beyer, KS, Fukuda, DH, Redd, MJ, Stout, JR, and Hoffman, JR. Player selection bias in National Football League draftees. J Strength Cond Res 30(11): 2965-2971, 2016-Relative age effects (RAEs) have been studied as a potential factor associated with player selection bias in numerous sports. However, little research has examined the role of RAEs among National Football League (NFL) draftees. The purpose of the current study was to determine the existence of RAEs in NFL draftees from the last 10 NFL drafts. Draftee birth dates were collected and divided into calendar and scholastic quarters (SQ1-SQ4)...
November 2016: Journal of Strength and Conditioning Research
A R Docherty, A Moscati, R Peterson, A C Edwards, D E Adkins, S A Bacanu, T B Bigdeli, B T Webb, J Flint, K S Kendler
Biometrical genetic studies suggest that the personality dimensions, including neuroticism, are moderately heritable (~0.4 to 0.6). Quantitative analyses that aggregate the effects of many common variants have recently further informed genetic research on European samples. However, there has been limited research to date on non-European populations. This study examined the personality dimensions in a large sample of Han Chinese descent (N=10 064) from the China, Oxford, and VCU Experimental Research on Genetic Epidemiology study, aimed at identifying genetic risk factors for recurrent major depression among a rigorously ascertained cohort...
October 25, 2016: Translational Psychiatry
Arthur Lalonde, Hugo Bouchard
To develop a general method for human tissue characterization with dual- and multi-energy CT and evaluate its performance in determining elemental compositions and quantities relevant to radiotherapy Monte Carlo dose calculation. Ideal materials to describe human tissue are obtained applying principal component analysis on elemental weight and density data available in literature. The theory is adapted to elemental composition for solving tissue information from CT data. A novel stoichiometric calibration method is integrated to the technique to make it suitable for a clinical environment...
November 21, 2016: Physics in Medicine and Biology
David J Liptrot, Jing-Dong Guo, Shigeru Nagase, Philip P Power
The transition metal tetra- and trinorbornyl bromide complexes, M(nor)4 (M=Fe, Co, Ni) and Ni(nor)3 Br (nor=1-bicyclo[2.2.1]hept-1-yl) and their homolytic fragmentations were studied computationally using hybrid density functional theory (DFT) at the B3PW91 and B3PW91-D3 dispersion-corrected levels. Experimental structures were well replicated; the dispersion correction resulted in shortened M-C bond lengths for the stable complexes, and it was found that Fe(nor)4 receives a remarkable 45.9 kcal mol(-1) stabilization from the dispersion effects whereas the tetragonalized Co(nor)4 shows stabilization of 38...
October 25, 2016: Angewandte Chemie
Paul Kurlansky, Morley Herbert, Syma Prince, Michael Mack
BACKGROUND: Multiple studies have compared coronary artery bypass graft (CABG) with percutaneous coronary interventions (PCI) for coronary revascularization. There is considerable evidence that adherence to medical therapy can affect the outcomes of therapeutic interventions. However, the long-term influence of compliance with recommended medical therapy on the comparative outcomes of CABG versus PCI remains to be defined. METHODS: All non-ST-segment-elevation myocardial infarction patients undergoing coronary revascularization in an 8-hospital network were followed for up to 8 years to determine medication history and major adverse cardiac events: all-cause mortality, nonfatal myocardial infarction, and reintervention...
October 25, 2016: Circulation
Raminta Daniulaityte, Lu Chen, Francois R Lamy, Robert G Carlson, Krishnaprasad Thirunarayan, Amit Sheth
BACKGROUND: To harness the full potential of social media for epidemiological surveillance of drug abuse trends, the field needs a greater level of automation in processing and analyzing social media content. OBJECTIVES: The objective of the study is to describe the development of supervised machine-learning techniques for the eDrugTrends platform to automatically classify tweets by type/source of communication (personal, official/media, retail) and sentiment (positive, negative, neutral) expressed in cannabis- and synthetic cannabinoid-related tweets...
October 24, 2016: JMIR Public Health and Surveillance
Esther Pompe, Eva M van Rikxoort, Onno M Mets, Jean-Paul Charbonnier, Jan-Martin Kuhnigk, Harry J de Koning, Matthijs Oudkerk, Rozemarijn Vliegenthart, Pieter Zanen, Jan-Willem J Lammers, Bram van Ginneken, Pim A de Jong, Firdaus A A Mohamed Hoesein
OBJECTIVES: Airway wall thickness (AWT) is affected by changes in lung volume. This study evaluated whether correcting AWT on computed tomography (CT) for differences in inspiration level improves measurement agreement, reliability, and power to detect changes over time. METHODS: Participants of the Dutch-Belgian lung cancer screening trial who underwent 3-month repeat CT for an indeterminate pulmonary nodule were included. AWT on CT was calculated by the square root of the wall area at a theoretical airway with an internal perimeter of 10mm (Pi10)...
November 2016: European Journal of Radiology
Ali Fatih Demir, Qammer Abbasi, Zekeriyya Esat Ankarali, Akram Alomainy, Khalid Qaraqe, Erchin Serpedin, Huseyin Arslan
In vivo wireless body area networks (WBANs) and their associated technologies are shaping the future of healthcare by providing continuous health monitoring and noninvasive surgical capabilities, in addition to remote diagnostic and treatment of diseases. To fully exploit the potential of such devices, it is necessary to characterize the communication channel which will help to build reliable and high-performance communication systems. This paper presents an in vivo wireless communication channel characterization for male torso both numerically and experimentally (on a human cadaver) considering various organs at 915 MHz and 2...
October 19, 2016: IEEE Journal of Biomedical and Health Informatics
Norihiko L Okamoto, Shu Fujimoto, Yuki Kambara, Marino Kawamura, Zhenghao M T Chen, Hirotaka Matsunoshita, Katsushi Tanaka, Haruyuki Inui, Easo P George
High-entropy alloys (HEAs) comprise a novel class of scientifically and technologically interesting materials. Among these, equatomic CrMnFeCoNi with the face-centered cubic (FCC) structure is noteworthy because its ductility and strength increase with decreasing temperature while maintaining outstanding fracture toughness at cryogenic temperatures. Here we report for the first time by single-crystal micropillar compression that its bulk room temperature critical resolved shear stress (CRSS) is ~33-43 MPa, ~10 times higher than that of pure nickel...
October 24, 2016: Scientific Reports
Alex Dickson, Christopher T Bailey, John Karanicolas
Proteins can be destabilized by a number of environmental factors such as temperature, pH, and mutation. The ability to subsequently restore function under these conditions by adding small molecule stabilizers, or by introducing disulfide bonds, would be a very powerful tool, but the physical principles that drive this stabilization are not well understood. The first problem lies is in choosing an appropriate binding site or disulfide bond location to best confer stability to the active site and restore function...
October 24, 2016: Journal of Computational Chemistry
Ivan V Smirnov, Andrey V Golovin, Spyros D Chatziefthimiou, Anastasiya V Stepanova, Yingjie Peng, Olga I Zolotareva, Alexey A Belogurov, Inna N Kurkova, Natalie A Ponomarenko, Matthias Wilmanns, G Michael Blackburn, Alexander G Gabibov, Richard A Lerner
In vitro selection of antibodies from large repertoires of immunoglobulin (Ig) combining sites using combinatorial libraries is a powerful tool, with great potential for generating in vivo scavengers for toxins. However, addition of a maturation function is necessary to enable these selected antibodies to more closely mimic the full mammalian immune response. We approached this goal using quantum mechanics/molecular mechanics (QM/MM) calculations to achieve maturation in silico. We preselected A17, an Ig template, from a naïve library for its ability to disarm a toxic pesticide related to organophosphorus nerve agents...
October 2016: Science Advances
Miguel Anaya, Juan P Correa-Baena, Gabriel Lozano, Michael Saliba, Pablo Anguita, Bart Roose, Antonio Abate, Ullrich Steiner, Michael Grätzel, Mauricio E Calvo, Anders Hagfeldt, Hernán Míguez
Organic-inorganic perovskite structures in which lead is substituted by tin are exceptional candidates for broadband light absorption. Herein we present a thorough analysis of the optical properties of CH3NH3Sn x Pb1-x I3 films, providing the field with definitive insights about the possibilities of these materials for perovskite solar cells of superior efficiency. We report a user's guide based on the first set of optical constants obtained for a series of tin/lead perovskite films, which was only possible to measure due to the preparation of optical quality thin layers...
August 7, 2016: Journal of Materials Chemistry. A, Materials for Energy and Sustainability
Zafer Iscan, Maria Nazarova, Tommaso Fedele, Evgeny Blagovechtchenski, Vadim V Nikulin
Inter- and intra-subject variability of the motor evoked potentials (MEPs) to TMS is a well-known phenomenon. Although a possible link between this variability and ongoing brain oscillations was demonstrated, the results of the studies are not consistent with each other. Exploring this topic further is important since the modulation of MEPs provides unique possibility to relate oscillatory cortical phenomena to the state of the motor cortex probed with TMS. Given that alpha oscillations were shown to reflect cortical excitability, we hypothesized that their power and variability might explain the modulation of subject-specific MEPs to single- and paired-pulse TMS (spTMS, ppTMS, respectively)...
2016: Frontiers in Human Neuroscience
M Venkataravanappa, H Nagabhushana, B Daruka Prasad, G P Darshan, R B Basavaraj, G R Vijayakumar
A novel Sr2SiO4:Eu (1-5mol %) superstructures (SS) were synthesized using bio-sacrificial A.V. gel assisted ultrasound method. Powder X-ray diffraction patterns confirmed the presence of both α and β phase formation. It was evident that the morphological growth was highly reliant on A.V. gel concentration, sonication time, pH and sonication power. The formation mechanisms for different hierarchical SS were proposed. From diffuse reflectance spectra, the energy band gap was estimated and found to be ∼4.70-5...
January 2017: Ultrasonics Sonochemistry
Guanshu Li, Hongbo Zhang, Chunsheng Wei, Yingying Huang, Xuekai Dou, Yidi Wang, Jun Wang, Youtao Song
(5.0%)Er(3+):Y3Al5O12/Pt-(TiO2-Ta2O5) powder, as a high effective sonocatalyst, was prepared using sol-gel and calcination method. Then it was characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX). In order to evaluate the sonocatalytic activity of the prepared (5.0%)Er(3+):Y3Al5O12/Pt-(TiO2-Ta2O5) powder, the sonocatalytic decomposition of ametryn was studied. In addition, some influencing factors such as different Ti/Ta molar ratios on the sonocatalytic activity of the prepared (5...
January 2017: Ultrasonics Sonochemistry
Akos A Gerencser, Shona A Mookerjee, Martin Jastroch, Martin D Brand
Analysis of the cellular mechanisms of metabolic disorders, including type 2 diabetes mellitus, is complicated by the large number of reactions and interactions in metabolic networks. Metabolic control analysis with appropriate modularization is a powerful method for simplifying and analyzing these networks. To analyze control of cellular energy metabolism in adherent cell cultures of the INS-1832/13 pancreatic β-cell model we adapted our microscopy assay of absolute mitochondrial membrane potential (ΔψM) to a fluorescence microplate reader format, and applied it in conjunction with cell respirometry...
October 20, 2016: Biochimica et Biophysica Acta
Seyedeh Fatemeh Hosseini, Mahdi Sadeghi, Mohammad Reza Aboudzadeh, Morteza Mohseni
Gold has two medically useful radioactive isotopes, (198)Au and (199)Au, for locally irradiating and killing tumor cells. (198)Au radionuclide has been produced through the irradiation of the pure gold via (197)Au(n,γ)(198)Au reaction in the Tehran Research Reactor at a thermal neutron flux of 4.5×10(13)ncm(-2)s(-1) for the different irradiation times. In this paper, the activity of (198)Au radionuclide has been determined using MCNPX-2.6 and TALYS-1.6 codes and also the theoretical approach. The calculated results were compared with the corresponding experimental values...
October 5, 2016: Applied Radiation and Isotopes
G Actis Grande, M Giansetti, A Pezzin, G Rovero, S Sicardi
The present work aims to study the effect of the liquid temperature on the performance of ultrasounds (US) in a dyeing process. The approach was both theoretical and experimental. In the theoretical part the simplified model of a single bubble implosion is used to demonstrate that the "maximum implosion pressure" calculated with the well known Rayleigh-Plesset equation for a single bubble can be correlated with the cavitation intensity experimentally measured with an Ultrasonic Energy Meter (by PPB Megasonics)...
October 6, 2016: Ultrasonics Sonochemistry
Andrew F Leuchter, Aimee M Hunter, Felipe A Jain, Molly Tartter, Caroline Crump, Ian A Cook
Serotonin modulates brain oscillatory activity, and serotonergic projections to the thalamus and cortex modulate the frequency of prefrontal rhythmic oscillations. Changes in serotonergic tone have been reported to shift oscillations between the combined delta-theta (2.5-8 Hz) and the alpha (8-12 Hz) frequency ranges. Such frequency shifts may constitute a useful biomarker for the effects of selective serotonin reuptake inhibitor (SSRI) medications in Major Depressive Disorder (MDD). We utilized quantitative electroencephalography (qEEG) to measure shifts in prefrontal rhythmic oscillations early in treatment with either the SSRI escitalopram or placebo, and examined the relationship between these changes and remission of depressive symptoms...
October 7, 2016: Journal of Psychiatric Research
Matias Koivurova, Ari-Pekka Leppänen
Predictive models are necessary in order to minimize potential damages in the event of a nuclear or radiological release. For this reason, a novel model for the calculation of both wet and dry deposition from airborne radioactivity is proposed. Full derivation of the model and the estimation of uncertainty are presented, and the validity of the model is evaluated by calculating deposition based on several measured airborne activities in different countries. The results are compared with the corresponding measured deposition activities and the predictive power of the model is found to be good, i...
October 19, 2016: Journal of Environmental Radioactivity
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